Newer herbicides join the arsenal

  • April 15th, 2011

Among the newer herbicides that fruit growers should look at are Treevix, Alion, Matrix, Spartan, and Sandea, and there are new formulatons of Sinbar and Rely, says Michigan State University weed control specialist Dr. Bernie Zandstra.

Treevix (saflufenacil) was new last year, introduced by BASF. It has both foliar and [...]

Good Stuff

  • March 15th, 2011

Sweet success
A new series of scab-resistant apples called “Sweet Resistants” developed by the Consorzio Italiano Vivaisti (CIV) in Italy was among the ten finalists for the Fruit Logistica Innovation Award during the Fruit Logistica trade fair in February. The five varieties in the series are Gaia, Gemini, Renoir, [...]

  • Beekeepers fear loss of forage

Beekeepers fear loss of forage

  • March 15th, 2011

The purple spotted knapweed flower is attractive to bees and a good nectar producer: However, once it gains a foothold, spotted knapweed kills competing vegetation and creates conditions for its own spread.
Photo by James H. Miller, USDA Forest Service, Bugwood.org photo Inset by Marisa Williams, University of Arkansas, [...]

  • Spin your weeds away

Spin your weeds away

After years of sitting on a tractor to knock down vineyard weeds with an old grape hoe, only doing about an acre an hour and always causing some vine damage, Dave Kohler finally reached his breaking point. Nearly ten years ago, he’d had enough and was determined to figure [...]

Breaking the weed cycle

  • February 1st, 2011

Wapato, Washington, grape grower Mike Sauer has experience with replanting both wine and juice grapes. Wine grapes, when following wine grapes in a vineyard with wide spacing between vine rows, are relatively easy, but Concords following Concords are a ­different problem, he says.

Sauer’s early wine grape vineyards were planted [...]

  • Electric vehicle has power

Electric vehicle has power

  • December 1st, 2010

Karen Lewis and Gwen Hoheisel (standing) demonstrate how an electric utility vehicle can be used for herbicide spraying with the WeedSeeker technology.

Karen Lewis and Gwen Hoheisel, Washington State University Extension educators, say an electric all-terrain vehicle that they’re evaluating has met or exceeded all their expectations in research plots.

The [...]

  • Use glyphosate  with caution

Use glyphosate with caution

  • September 1st, 2010

This stunted apple tree, which has a large basal canker, is in an orchard where the grower used glyphosate alone three to four times a year to control weeds. Cuts on the margin of the canker show healthy green tissue.

Growers often express concern that a herbicide program using glyphosate [...]

  • Protect trees from weeds and pests

Protect trees from weeds and pests

  • May 15th, 2010

Control weeds while they’re small and easy to kill, so they don’t compete with the young trees.

In a new orchard, weeds have every condition they need to thrive and compete with the trees—full sun, regular moisture, and nutrients. Keep a sharp eye on the weeds right from the start [...]

  • Options for weed control

Options for weed control

  • April 15th, 2010

Good weed control is most important early in the season, but fall may be a better time to get the job done.

Good weed control is essential in modern orchards, where trees are planted at high densities on weak, shallow-rooted rootstocks and can’t handle much competition for water and nutrients.

Given [...]

  • Cultivating beneficials

Cultivating beneficials

  • December 1st, 2009

Mike Omeg checks for beneficial insects in goldenrod plants in an insectary alongside a Regina cherry block. He’s watched by (from left) Drew Merritt and Kristin Currin of Humble Roots Farm & Nursery at Mosier, Oregon, and Gwendolyn Ellen of Oregon State

Oregon cherry grower Mike Omeg is worried about [...]